Flowmaster

Just recently put a flowmaster 40 series with a dual rear exit and 3 in. tips on my 08 silverado. It really makes the 4.3L rumble. I was worried that it might be a little whiney but it has a nice deep rumble. I am very satisfied with it.

i might give it a try then.right now i just have straight pipes (which sounds fine) after the cats abut ive been wanting to add a muffler and been considering flowmaster.ive never heard a mgna flow though but ive heard great things